I used linux on all my laptops/work machines for about 7 years, then switched to macbook pros 5 years ago. Definitely some things you have to adapt to (I still miss focus-follows-mouse). But for the most part, you'll find it's a smooth ride. When bumps like this happen, they tend to push out a fix quickly - especially when it gets traction on HN like this.
I used a mac for almost 8 years. When things worked, and you shared the same preferences as the designers (or were willing to adapt), things were pretty good.
If you had different preferences, mostly too bad. Maybe if you reboot with system protection turned off, you can edit the config file, and hope it doesn't get reverted.
If things didn't work, like when I was getting static for audio 25% of the time I hit Play in iTunes from a shoutcast server for a whole major release, there wouldn't be any useful help on the internet. Maybe somebody had a similar problem 3 releases ago, but that fix doesn't work anymore. Other problems, or irritants are often the same way.
With Windows, most of the problems you run into are fixable, and easy to find. With an open source OS, at least you can dig in and try to fix your own problems.
For me, focus-follows-mouse is most useful for terminal windows. It is a feature you can enable in iTerm2.
This doesn't help across applications of course, and there's a reasonable argument that the inconsistency is worse than the absence -- but for me, iTerm2's FFM feature helps.
